# Sampling Calculator vs DigiLEAN

The clearest difference is price: DigiLEAN at Free against Sampling Calculator's $5.99. DigiLEAN also leads on update cadence (every 3 months vs every 16 months). Sampling Calculator's advantage is chart position (#173 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

DigiLEAN is free to download; Sampling Calculator costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sampling Calculator ships an update every 16 months, DigiLEAN every 3 months. Both last shipped on September 10, 2026.

## The numbers

| Metric | Sampling Calculator | DigiLEAN |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sampling-calculator/id1304811062/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 months** |
| Monetization | Paid | — |
| Best chart rank | **#173** | — |
| Size | 3 MB | 86 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Juan Manuel Alfredo Sanchez](https://appshunter.io/developer/1304811061) | [Kaizen Solutions AS](https://appshunter.io/developer/1362578658) |

## What reviewers say

### Sampling Calculator

[App page](https://appshunter.io/ios/app/sampling-calculator/id1304811062)

**Currently charting:** #173 Top Paid · Productivity (US App Store)

This tool helps calculate sampling plans based on ANSI/ASQ Z1.4 and MIL-STD-105E standards. It supports various sampling size code letters and AQLs for normal, tightened, and reduced inspections. It serves as an aid to understanding and applying these quality control standards.

**Highlights:** ANSI/ASQ Z1.4 2013 compliance, MIL-STD-105E compliance, Single sampling size code letters, Normal, Tightened, and Reduced inspection, AQLs from 0.065 to 15

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### DigiLEAN

[App page](https://appshunter.io/ios/app/digilean/id1362578659)

**In-app purchases:** none


## Frequently asked questions

### Is Sampling Calculator free?

Sampling Calculator costs $5.99, with no in-app purchases.

### Is DigiLEAN free?

DigiLEAN is free to download, with no in-app purchases.

### Do Sampling Calculator or DigiLEAN have ads?

Neither Sampling Calculator nor DigiLEAN shows ads.

### Which is updated more often, Sampling Calculator or DigiLEAN?

Sampling Calculator ships an update every 16 months, and DigiLEAN every 3 months. Most recently, Sampling Calculator was updated on September 10, 2026 and DigiLEAN on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*